#include <U8g2lib.h>
#include <Wire.h>

U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);

String str = "123+321";

void setup() {
  // put your setup code here, to run once:
  OLED_Init();
}

void loop() {
  // put your main code here, to run repeatedly:
  OLED_Display(str);
  while (1);
}
